Excellis IT Pvt Ltd is recruiting a Software QA Tester for an on-site position in Kolkata, requiring candidates with 2 to 4 years of experience. The role encompasses creating detailed test plans by converting requirements and design specifications into test cases, scenarios, and checklists before build deployment. Functional testing of web and mobile applications will be conducted end-to-end, including all user flows, form validations, edge cases, and error conditions. Cross-platform and cross-browser testing is necessary to ensure consistent behavior across devices, screen sizes, and browsers such as iOS and Android. API testing involves validating FastAPI endpoints for correct responses, status codes, error handling, and data integrity. Defect logging must be clear and reproducible, with steps, severity, and evidence provided to assist developers in resolving issues promptly.